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Updated: June 21, 2025
Moreover, the brain itself is divided into two hemispheres, the heart into two ventricles, and the lungs into two lobes; the right of all these having relation to the good of truth, and the left to the truth of good, or, what is the same, the right having relation to the good of love from which is the truth of wisdom, and the left having relation to the truth of wisdom which is from the good of love.
Till about this time a straight artery has been observed to beat with the regularity of the pulse; but now it appears doubled somewhat into the shape of an adult heart, although as yet it has but one auricle and one ventricle. As time advances we find the perfect heart with its two ventricles and two auricles, all developed from the original straight artery.
They are, in some sort, like the elaborate and artful arrangement of ropes in a ship, bracing the heart on every side as it contracts, and so enabling it more effectually and forcibly to expel the charge of blood from its ventricles.
VI. The impoverished condition of the blood, which led to serous effusions within the ventricles of the brain, and around the brain and spinal cord, and into the pericardial and abdominal cavities, was gradually induced by the action of several causes, but chiefly by the character of the food.
The track itself was filled with thick pus which extended into the ventricles. Peabody reports a most remarkable case of recovery from multiple arrow-wounds. In a skirmish with some Indians on June 3, 1863, the patient had been wounded by eight distinct arrows which entered different parts of the body.
The contraction of the heart becomes stronger and the normal sounds more decided; murmurs which were entirely due to dilated ventricles and insufficiency disappear, while the permanent murmurs may become louder from a more forceful, normal action of the heart muscle. The pulse becomes slower, and the blood pressure, from being too low, becomes normal for the age of the individual.
If the pulse, in spite of treatment, is permanently irregular, and auricular insufficiency is permanent, the patient is of course in danger of cardiac failure; but still he may live for years and die of some other cause than heart failure. The prognosis is better when the pulse is not rapid below a hundred. This shows that the ventricles are not much excited and do not tend to wear themselves out.
For if it be a necessary effect of the dilatation of the heart that its ventricles become filled with blood, it is equally so that, contracting, these cavities should expel their contents; and this not in any trifling measure.
=The Heart or Pump of Life.= When the heart stops we die, because the blood can no longer flow to carry food and oxygen to the hungry tissues. The heart is a sac with thick walls of muscle. It is shaped like a strawberry and is about as large as your fist. Its cavity is divided into four parts. The two upper ones are called auricles and the lower ones are named ventricles.
But the true effect of every one of its fibres is to constringe the heart at the same time they render it tense; and this rather with the effect of thickening and amplifying the walls and substance of the organ than enlarging its ventricles.
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